HP Serviceguard Cvmdg, Vxvmdgretry, Deactivationretrycount, Killprocessesaccessingrawdevices

NOTE: A volume group must be configured into the cluster (via the VOLUME_GROUP parameter) before you can configure it into a modular package. For more information about cluster parameters, see “Cluster Configuration Parameters ” (page 109).

cvm_dg

Specifies a CVM disk group (one per cvm_dg, each on a new line) used by this package. CVM disk groups must be specified whether file systems need to be mounted on them or not. A corresponding cvm_activation_cmd (page 248) specifies how the disk group is to be activated.

Any package using a CVM disk group must declare a dependency (see the entries for dependency_name and related parameters starting on (page 238)) on the CVM system multi-node package. See “Preparing the Cluster for Use with CVM ” (page 220).

vxvm_dg

Specifies a VxVM disk group (one per vxvm_dg, each on a new line) on which a file system needs to be mounted. See the comments in the package configuration file, and “Creating the Storage Infrastructure and file systems with LVM, VxVM and CVM” (page 177), for more information.

vxvm_dg_retry

Specifies whether to retry the import of a VxVM disk group, using vxdisk scandisks to check for any missing disks that might have caused the import to fail. Equivalent to VXVM_DG_RETRY in the legacy package control script.

Legal values are yes and no. yes means vxdisk scandisks will be run in the event of an import failure. The default is no.

HP recommends setting this parameter to yes in Metrocluster installations using EMC SRDF.

IMPORTANT: vxdisk scandisks can take a long time in the case of a large IO subsystem.

deactivation_retry_count

Specifies how many times the package shutdown script will repeat an attempt to deactivate a volume group (LVM) or disk group (VxVM, CVM) before failing.

Legal value is zero or any greater number. As of A.11.18, the default is 2.

kill_processes_accessing_raw_devices

Specifies whether or not to kill processes that are using raw devices (for example, database applications) when the package shuts down. Default is no. See the comments in the package configuration file for more information.

File system parameters

A package can activate one or more storage groups on startup, and mount logical volumes to file systems. At halt time, the package script unmounts the file systems and deactivates each storage group. All storage groups must be accessible on each target node. (CVM disk groups must be accessible on all nodes in the cluster).

For each local file system you specify in the package configuration file (fs_name (page 251)), you must identify a logical volume, the mount point, the mount, umount, and fsck options and type of the file system; for example:

fs_name /dev/vg01/lvol1

fs_directory /pkg01aa

fs_mount_opt "-o rw"

fs_umount_opt "-s"

Choosing Package Modules 249